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55000000053 = 3310303197713
BaseRepresentation
bin110011001110010000…
…010110011000110101
312020222001012111021000
4303032100112120311
51400120000000203
641133332513513
73654644200245
oct631620263065
9166861174230
1055000000053
11213640800a9
12a7ab47b899
1352568cb63b
14293a7d1b25
15166d7eb4a3
hexcce416635

55000000053 has 16 divisors (see below), whose sum is σ = 81489802240. Its totient is φ = 36662922432.

The previous prime is 55000000039. The next prime is 55000000087. The reversal of 55000000053 is 35000000055.

It is not a de Polignac number, because 55000000053 - 25 = 55000000021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54999999972 and 55000000035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000001053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179325 + ... + 377037.

It is an arithmetic number, because the mean of its divisors is an integer number (5093112640).

Almost surely, 255000000053 is an apocalyptic number.

It is an amenable number.

55000000053 is a deficient number, since it is larger than the sum of its proper divisors (26489802187).

55000000053 is a wasteful number, since it uses less digits than its factorization.

55000000053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208025 (or 208019 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The spelling of 55000000053 in words is "fifty-five billion, fifty-three", and thus it is an aban number and an uban number.

Divisors: 1 3 9 27 10303 30909 92727 197713 278181 593139 1779417 5338251 2037037039 6111111117 18333333351 55000000053